Ke’Bryan Hayes of the Pirates lost a home run:

See, when Hayes made contact, the home run wasn’t quite a no-doubter, so he was sprinting to first while watching the flight of the ball. That combination of factors may have contributed to Hayes missing first base — which the Dodgers noticed. They won their appeal, and instead of a 1-0 lead, the Pirates were left with an 0-0 tie and an out.

ESPN.com

There seem to be a lot of mental mistakes this year. I hope that as things continue to return to normal, we see less of this.